22074737 has 2 divisors, whose sum is σ = 22074738. Its totient is φ = 22074736.

The previous prime is 22074719. The next prime is 22074739. The reversal of 22074737 is 73747022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13366336 + 8708401 = 3656^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 22074737 - 2¹⁰ = 22073713 is a prime.

Together with 22074739, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1393709 and since 22074737 and 1393709 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22074739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11037368 + 11037369.

It is an arithmetic number, because the mean of its divisors is an integer number (11037369).

Almost surely, 2^22074737 is an apocalyptic number.

It is an amenable number.

22074737 is a deficient number, since it is larger than the sum of its proper divisors (1).

22074737 is an equidigital number, since it uses as much as digits as its factorization.

22074737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 22074737 is about 4698.3759960225. The cubic root of 22074737 is about 280.5208714318.

The spelling of 22074737 in words is "twenty-two million, seventy-four thousand, seven hundred thirty-seven".